code: def change_plot(self, plot_number):
      t = np.arange(1.0, 3.0, 0.01)
      s = functions[plot_number][1](t)
      self.axes.clear()
      self.axes.plot(t, s)
      self.canvas.draw()
  
file_path: matplotlib/galleries/examples/user_interfaces/mathtext_wx_sgskip.py
imports: from io import BytesIO
  import wx
  import numpy
  from matplotlib.backends.backend_wx import NavigationToolbar2Wx
  from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg
  from matplotlib.figure import Figure
label_desc: Use image node_id 5 for calling the CanvasFrame obj's underlying member method code with example usage: obj.change_plot(plot_number) without return types